CIA shares trove of declassified UFO files online

The CIA posted almost a million declassified files online this week, offering a fascinating record of unexplained UFO sightings and the agency’s secret operations.

Around 930,000 documents, totaling more than 12 million pages, have been posted online. Previously, the files were only available to the public at the National Archives in Maryland. Spanning early CIA history, the Cold War, Vietnam, and the U-2 reconnaissance aircraft, the archive also details a number of UFO incidents.